hw0: fixed submission
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5 changed files with 5 additions and 10 deletions
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@ -90,6 +90,7 @@ double sum_fraction_array_approx(fraction frac_array[], int n)
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{
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double sum = 0;
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for (int i = 0; i < n; i++) {
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fraction& frac = frac_array[i];
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sum += fraction2double(frac);
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}
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return sum;
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@ -71,8 +71,8 @@ static void test_array_functions(int n)
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cout << "Sum of array as double (approx.): " << endl;
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cout << sum_fraction_array_approx(a, n) << endl;
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// find n for which sum function breaks. Explain what is happening. n=4448,
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// this is the first number where the numerator overflows and thus
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// find n for which sum function breaks. Explain what is happening. n=1290
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// this is the first number where the denominator overflows and thus
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// erroneoulsly becomes a negative number. The overflow is caused by the
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// sum_fractions function, specifically in the multiplication between
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// denominators. The approximation function doesn't overflow since fractions
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@ -94,13 +94,7 @@ static void test_toolbox(int argc, char* argv[])
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test5();
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cout << "\n========== test_array_functions ========= " << endl;
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#if 1
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cout << "Input n: " << endl;
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int n;
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cin >> n;
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#else
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int n = 5;
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#endif
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int n = 1290;
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test_array_functions(n);
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}
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